RTS0072

RTS0072B RTS0072 VOICE CHANGER Features ‧ Wide operating voltage range 3.0V ∼ 5.0V ‧ and low power consumption. ‧ Several voice effects selectable -- Transposing voice (higher or lower) -- Amplifying voice -- Robot voice Low power consumption ‧ No need of external memory. ‧ Variable resistor or switch can be used to adjust the transposed voice effect. ‧ For applications in toy, mask, telephone system and other voice fields. ‧ With a silence function General Description The RTS0072B is a single chip CMOS LSI designed for voice changer, which can transpose or distort one voice into another voice by encoding the input audio signals in normal speed and transmit the output audio signals with unusual speed. That is accomplished by sampling the input audio signals into digital signals and re-arranges the digital signals to generate different voice from the user normal voice. ¤Þ¸}¹Ï(Pin Assignment) ¹q¸ô®Ø¹Ï(Block Diagram) DAT WOSCI WOSCO S1 S2 SEL NRL ROB ROSCI 1 2 3 4 16 15 14 13 RDOUT VSS AVSS IN AVDD VDD DAT ROSCO IN MX AMPLIFIER COMPARATOR A/D RAM D/A RDOUT 12 5 RTS0072B 6 7 8 11 10 9 WOSCI WOSCO S1 S2 SEL NRL ROB Control Logic ROSCI ROSCO V1.0 1 Aug/21/1998 RTS0072B MAX RATINGS Operating Voltage range 輸入/輸出電壓 -0.3V ∼ 5.0V GND-0.2V ∼ VDD+0.2V -25℃ ∼ 125℃ Operating Temperature -10℃ ∼ 60℃ Storage Temperature 說明* 本欄參數范圍絕對不允許超出，否則元件將 受到永久性的損坏。同樣不允許在臨界條件 下停留太長時間，否則即使不損坏元件，也 將影響元件的可靠性。 V1.0 2 Aug/21/1998 RTS0072B 電氣特性 (VDD＝4.0V，TA＝25℃，FOSC＝800KHZ，) 參數 Operating Voltage Power Consumption Input Audio Level Output Audio Level 符號 VDD IDD Vin p-p Vout p-p Min 3.0V -0.5V -典型值 4,0V -1.5V 1.67V Max 5.0V 10.0mA 2.0V -- V1.0 3 Aug/21/1998 RTS0072B ELECTRICAL CHARACTERISTICS Pin No. 1 2 3,4 Designation WOSCI WOSCO S1,S2 Description Write (sampling) oscillator input pin. Write (sampling) oscillator output pin. Output tone select pins; these pins define the output tone frequency. Selection table is as follows: S1 S2 Output *freq * Input Frequency 1KHz 0 0 L 800Hz 0 1 H 1 0 VL 1 1 VH 1333Hz 660Hz 2KHz 5 SEL The voice effect are adjusted by variable resistor if this pin is connected to GND. 6 NRL Amplifying voice effect is selected if this pin is connected to GND. Transposing voice effect is selected if this pin is floating. 7 8 9 10 11 12 13 14 15 16 ROB ROSCI ROSCO DAT VDD AVDD IN AVSS VSS RDOUT Robot voice effect is selected if this pin is connected to GND. Read (re-arranging) oscillator input pin. Read (re-arranging) oscillator output pin. This pin is for internal use. (For testing only) Positive power supply. Analog positive power supply. Audio signal input pin. Analog positive power supply. Negative power supply. Audio signal output pin. V1.0 4 Aug/21/1998 RTS0072B TYPICAL APPLICATIONS 1. 470 Ω SW1 680 Ω + - 9V 100 µ F + 5K (VR) 8050 0.047 µ F 47K 100 Ω 1 15K 330 Ω R7 TYPICAL Fr.=1MHz 50P 10P DIP 2 8050 + - 100 µ F 8050 16 15 14 13 12 11 2.7K-3.9K 10 9 R2 4.7K 0.1 µ F C4 4.3V + - 100 µF TYPICAL Fr. =300KHz-1MHz RTS0072B 3 4 5 6 7 8 10K (VR) 2.帶 386 放大器的可調電阻調節方式 470 Ω SW1 10 Ω 0.1 µ F + - 9V 100 µ F + + - 100 µ F 0.1 µ F Ra 2.7K-3.9K 10 9 4.3V + - 100 µ F TYPICAL Fr. =300KHz-1MHz 8 1 7 6 5 4 0.033 µ F (VR2) 16 15 14 13 12 11 LM 386 23 RTS0072B 1 2 15K 50P 10P DIP 3 4 5 6 7 8 10K (VR) 100 Ω Rb 0.033-0.1 µ F TYPICAL Fr.=1MHz Ra:麥克風調節控制,(40K – 20K) VR2: 音量控制 Rb: 最小音量設定(22-120Ω ) V1.0 5 Aug/21/1998 RTS0072B DIE Designation WOSCI WOSCO S1 S2 SEL NRL TIN ROB ROSCI ROSCO DAT VDD AVDD IN AVSS VSS RDOUT X 179.0 179.0 529.0 1063.0 1606.0 2182.0 2570.5 2570.5 2570.5 2570.5 2285.5 2002.0 1767.0 743.0 460.0 179.0 179.0 Y 968.0 487.0 182.0 182.0 182.0 182.0 482.5 870.5 1278.0 1799.5 2233.0 2233.0 2233.0 2223.0 2223.0 1641.0 1356.0 AVSS IN AVDD VDD DAT ROSCO VSS ROSCI about 2.4 mm RDOUT RTS0072B ROB WOSCI TIN WOSCO S1 Unit: in mil S2 SEL NRL X: 108.3 Y: 96.1 Note: Substrate is connected to VDD about 2.8 mm http://www.cbtricks.com V1.0 6 Aug/21/1998